Setting Or Changing The Clock - Aprilaire 8551 Owner's Manual

5-2 day programmable thermostat

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110-904

7/11/01

IMPORTANT: READ ALL INSTRUCTIONS THOROUGHLY

Programming your Aprilaire

times, and setting your desired temperatures.

4:29 PM

Page 3

Thermostat is done in three easy steps: setting the clock, setting the event

Setting Or Changing The Clock

Step 1: If you are currently in Daylight Saving Time

(first Sunday in April thru fourth Sunday in October),

press the DST button and "

lower right-hand corner of the display.

Step 2: Press the CLOCK button and "Mo"

(or another day of the week) will flash. Use the

DECREASE

or INCREASE

change the flashing symbol to the current day

of week.

– 1 –

" will appear in the

button to

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